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A potentiometer wire of length 10 m and resistance 10 Ω per metre is connected in series with a resistance box and a 2 volt battery. If a potential difference of 100mV is balanced across the whole length of potentiometer wire, then the resistance introduced in the resistance will be
Options
(a) 1900Ω
(b) 900Ω
(c) 190Ω
(d) 90Ω
Correct Answer:
190Ω
Explanation:
No explanation available. Be the first to write the explanation for this question by commenting below.
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Topics: Current Electricity
(136)
Subject: Physics
(2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- A plumb line is suspended form a ceiling of a car moving with horizontal acceleration
- The refractive index of water, glass and diamond are 1.33, 1.50, 2.40 respectively
- A carnot engine working between 300 K and 600 K has a work output of 800J per cycle.
- When 4 A current flows for 2 min in an electroplating experiment,
- A total charge of 5µC is distributed uniformly on the surface of the thin walled
Topics: Current Electricity (136)
Subject: Physics (2479)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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